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LED cube 3x3x3 Answered

I hope this goes to a place w/ someone who can assist me.

I built my cube wrote my code. My C skills are very limited and something like this would strengthen it I imagine. I would like some help in creating the letters though, kinda like they did in the blue 8x8x8 demo with the INSTRUCTABLE. So far I cannot make all the LED's light up in a single column, and make another column light up only one or two simultaneously. I'm lighting the whole thing. I understand the multiplexing and the lights in each column are toggling faster than I can see, but I still would like an idea. I'm going to do an 8x8x8 for capstone and would like to get familiar with this one first. Using the arduino uno and software. Any tips would be appreciated.

I've seen in other led matrices, if you are using white/clear LEDs, there is current leakage and that does weird things to the lights. You would need to put diodes in the with the resistors to control the flow of electricity in the grid.

The cube really works and is fully functional except for the little glitch. Unless you don't observe an actual problem in the code than I can give it a try. For the first question though, would you have an idea with the programming to make the letters. If I can get one letter to work I can get all letters to work. Its just a matter of progression.